查询词典 freshwater

A team led by geochemist Anne Osborne of the University of Bristol in the United Kingdom set out to see whether these channels carried freshwater during the first modern human migrations.

英国布里斯托尔大学的地球化学家安妮·奥斯本领导着一个研究小组，着手察看这些河道，以确定现代人类最初迁徙时河道中是否曾经流淌着淡水。

Ecological analysis of morphological and genetic variation revealed that:(1) The averages of morphological characters were significantly negatively correlated with WSF (2) Dominant frequencies of some RAPD loci were significantly correlated with WSF (3) The correlation between morphological variation and genetic variation was not significant (4) The cluster analysis based on morphological and genetic evidence supported that all population can be divided into three ecotypes: saltmarsh reed, freshwater reed and giant reed.

相关分析表明：种群内各形态特征的平均值均与水盐联合影响因子显著负相关，但种群内形态变异系数与水盐联合影响因子普遍相关不显著；种群遗传多样性指数与水盐联合影响因子相关不显著，但部分生境倾向型的RAPD位点的显性频率和来自等位酶分析的克隆多样性水平与水盐联合影响因子显著相关；形态变异系数与遗传多样性指数相关不显著，但相关系数均为正值。

The basal diameter, height of aerial stem, leaf length at middle stem, leaf width at middle stem, internode length at middle stem, internodes number and panicle length of 30 plants from every population were recorded. The statistics of morphological characters showed that the distribution trends of the averages of morphological characters are similar among populations. However, the coefficients of variation within population of 7 morphological characters were very different. The CV of internodes was largest and the CV of height was smallest within population. F-statistics showed that the differences of all morphological characters among populations were significant (P.01). But the differences among populations were different between different groups. The cluster analysis proved that all populations could be divided into three types: salty reed, freshwater reed and giant reed.

对来自每个种群的30个个体的基径、株高、中部叶长、中部叶宽、中部节间长、节间数、穗长7个形态特征的统计分析表明：各形态特征平均值在种群间的分布趋势相似，但变化幅度不同，株高、叶长等营养特征变化较大大，生殖特征穗长的变化较小；7个形态指标在种群内的平均变异度从大到小依次为中部节间长、中部叶宽、穗长、中部叶长、基径、节间数、株高，种群内的平均形态变异度与生境异质性有关；7个形态指标在种群间均差异显著，但多重比较分析显示显著差异主要存在于BZH、淡水生境种群和盐渍化生境种群之间，在相似生境种群间的形态差异不显著；以形态特征为依据的聚类分析支持将15个种群分为三类：盐生芦苇、淡水芦苇和巨型芦苇。

Another three species of freshwater dolphin, the world Ma Songde introduced luck than good : Amazon dolphins India globefish 885 globefish is not even live in densely deserted place, where they are doing very well.

世界上另外3种淡水豚运气比白鳍豚好：亚马孙豚、印度河豚和恒河豚都生活在人迹稀少甚至是没有人烟的地方，它们在那里都生活得很好。

A freshwater fish of the family Anabantidae, native to Africa and southeast Asia and including the gourami and climbing perch.

攀鲈一种攀鲈科淡水鱼，产于非洲和东南亚，包括丝足鱼和攀鲈

Very small European freshwater fish common in gravelly streams.

常见于多碎石的溪流中非常小的欧洲淡水鱼。

The Australian grayling, a freshwater fish, graduated from "vulnerable" to "near threatened" thanks to fish ladders at dams and other protection measures.

澳大利亚的一种淡水鱼，从"弱势"到"接近濒危"，幸亏在水坝的鱼梯和其他保护措施。

The different fishes which are employed in the present studies are wild-type salmon, cultured salmon of freshwater and seawater, sea perch and fat greenling. The complete CT gene sequences of salmons are obtained by PCR amplification. The partial CT sequences of sea perch and fat greenling are obtained by in vitro cloning PCR method. Alignment of obtained CT sequences with other fish CT shows that CT appears to be well conserved among the same family. And the relative in taxonomy is far away, the similarity of different fish CTs is low. On the contrary, the closer the relative in taxonomy is, the higher the similarity of different fish CTs is. The sCT is expressed in pGEX-4T-X by recombinant form . We also succeed in the research of sCT expression alone by expression PCR. In addition, sCT antiserum is obtained using GST-sCT as antigen, and the high titer is tested by double immunodiffusion. In the rat bioassay, administration of 50 μg recombinant protein evoked significant hypocalcemia at 1 h after the data are analyzed by t-test.

本文用PCR方法克隆了野生鲑鱼、养殖鲑鱼的降钙素基因，并应用体外克隆PCR的方法首次克隆出鲈鱼、六线鱼降钙素的部分基因序列，通过对克隆的降钙素序列的比较研究，结果显示同一科的鱼降钙素序列保守性较高，同时，根据降钙素的部分氨基酸序列进行了降钙素相似性的比较研究，结果显示在分类学上，分类地位较远的鱼，其降钙素相似性较低，分类地位越接近的鱼，其降钙素相似性越高；我们利用谷胱甘肽S-转移酶(Glutathions S-transferase，GST)融合表达载体pGEX-4T-X对克隆的鲑鱼降钙素基因进行了融合表达研究，应用表达PCR的方法对降钙素基因的独立表达进行了初步的研究探索，并将纯化的融合蛋白作为抗原，获得了高效价的兔抗鲑鱼降钙素免疫血清；生物活性研究表明，大肠杆菌表达的融合蛋白具有显著的降血钙作用。

Among them, Yuan Yu, and freshwater grouper world-renowned reputation of the beautiful and rich land of plenty.

其中，元鱼和桂花鱼中外闻名，被誉为美丽富饶的鱼米之乡。

The aim of this study was to investigate the effects of nonylphenol and nonylphenol monoethoxylate (NP1EO) on hemocytes of the giant freshwater prawn, including phenoloxidase activity, respiratory burst and hemocyte viability, by means of in vitro exposure experiments.

本研究利用体外处理试验，探讨壬基苯酚和壬基苯酚单乙氧基醇化物(NP1EO)对淡水长臂大虾血球细胞的影响，包括酚氧化酵素活性、呼吸释放量和血球的活存。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。